Humans and the water cycle

https://www.sciencelearn.org.nz/resources/726-humans-and-the-water-cycle
We are becoming increasingly aware of our impacts on nature, but unfortunately many of the ...

Marine food webs

https://www.sciencelearn.org.nz/resources/143-marine-food-webs
Feeding relationships are often shown as simple food chains – in reality, these relationships ...

Ocean salinity

https://www.sciencelearn.org.nz/resources/686-ocean-salinity
There are many chemicals in seawater that make it salty. Most of them get there from rivers ...

The ocean and the carbon cycle

https://www.sciencelearn.org.nz/resources/689-the-ocean-and-the-carbon-cycle
The ocean plays an important role in the global carbon cycle. Carbon moves in and out of the ...

Waves as energy transfer

https://www.sciencelearn.org.nz/resources/120-waves-as-energy-transfer
‘Wave’ is a common term for a number of different ways in which energy is transferred: In ...

Cleaning up the oil spill

https://www.sciencelearn.org.nz/resources/1140-cleaning-up-the-oil-spill
On 5 October 2011, the cargo vessel Rena ran aground on the Astrolabe Reef. The ship was ...

Ocean dissolved gases

https://www.sciencelearn.org.nz/resources/688-ocean-dissolved-gases
Seawater has many different gases dissolved in it, especially nitrogen, oxygen and carbon ...

Ocean density

https://www.sciencelearn.org.nz/resources/687-ocean-density
The density of seawater plays a vital role in causing ocean currents and circulating heat ...

What is the Earth system?

https://www.sciencelearn.org.nz/resources/1256-what-is-the-earth-system
There are many interacting systems that make up the Earth, many of which are dynamic. These ...

Ocean temperature

https://www.sciencelearn.org.nz/resources/707-ocean-temperature
The temperature of the ocean determines what form the water takes. Most of the ocean is liquid ...

Behaviour of waves

https://www.sciencelearn.org.nz/resources/121-behaviour-of-waves
All waves behave in certain characteristic ways. They can undergo refraction, reflection ...

Adapting to marine habitats

https://www.sciencelearn.org.nz/resources/1126-adapting-to-marine-habitats
Being able to adapt is a matter of life or death. In a perfect world, organisms would not need ...

Water density

https://www.sciencelearn.org.nz/resources/1009-water-density
Water density changes with temperature and salinity. Density is measured as mass (g) per unit ...

Water and weather

https://www.sciencelearn.org.nz/resources/725-water-and-weather
The water cycle is driven by energy from the sun. Liquid water is evaporated and changed into a ...

Ecosystems

https://www.sciencelearn.org.nz/resources/993-ecosystems
What is an ecosystem? An ecosystem is made up of animals, plants and bacteria as well as the ...

Fundamentals of waves

https://www.sciencelearn.org.nz/resources/119-fundamentals-of-waves
Seeing, hearing, feeling warmth, surfing, tuning the radio, using a cellphone – these and many ...

Build a marine food web

https://www.sciencelearn.org.nz/resources/1525-build-a-marine-food-web
In this activity, students build their own food web using images of organisms from the marine ...

Continental drift

https://www.sciencelearn.org.nz/resources/952-continental-drift
The Earth’s continents have not always been where they are at present. If you look at a map of ...

Antarctic marine ecosystem

https://www.sciencelearn.org.nz/resources/949-antarctic-marine-ecosystem
The Antarctic ecosystem is unique in that the food chains are very short and often based on the ...

Ocean motion

https://www.sciencelearn.org.nz/resources/691-ocean-motion
The ocean has a complex circulation system, moving water, heat, salt and nutrients around the ...

Measuring instruments

https://www.sciencelearn.org.nz/resources/123-measuring-instruments
Collecting data is a crucial part of scientific inquiry. To study waves and the ocean sea ...

The ocean and Earth’s systems and cycles

https://www.sciencelearn.org.nz/resources/690-the-ocean-and-earth-s-systems-and-cycles
The ocean plays an important part in several Earth systems and cycles. This is hardly ...

Why is Antarctica so cold?

https://www.sciencelearn.org.nz/resources/1038-why-is-antarctica-so-cold
During winter, the average temperature in the South Pole is -60°C, but in the North Pole it is ...

Seaweek resources

https://www.sciencelearn.org.nz/resources/2162-seaweek-resources
Seaweek is New Zealand’s annual national week about the sea. It is hosted by the New Zealand ...
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